diff --git a/slsDetectorSoftware/slsDetector/slsDetectorUsers.cpp b/slsDetectorSoftware/slsDetector/slsDetectorUsers.cpp
index 07a23c5ae..463ac3abe 100644
--- a/slsDetectorSoftware/slsDetector/slsDetectorUsers.cpp
+++ b/slsDetectorSoftware/slsDetector/slsDetectorUsers.cpp
@@ -356,10 +356,16 @@ int slsDetectorUsers::setReceiverPartialFramesPadding(int f, int detPos) {
 }
 
 int slsDetectorUsers::setReceiverFramesPerFile(int f, int detPos) {
-	return detector.setReceiverFramesPerFile(f, detPos);
+    return detector.setReceiverFramesPerFile(f, detPos);
 }
 
+std::string slsDetectorUsers::setAdditionalJsonParameter(const std::string& key, const std::string& value, int detPos) {
+    return detector.setAdditionalJsonParameter(key, value, detPos);
+}
 
+std::string slsDetectorUsers::getAdditionalJsonParameter(const std::string& key, int detPos) {
+    return detector.getAdditionalJsonParameter(key, detPos);
+}
 
 /************************************************************************
 
diff --git a/slsDetectorSoftware/slsDetector/slsDetectorUsers.h b/slsDetectorSoftware/slsDetector/slsDetectorUsers.h
index 883d3b17f..967d3682d 100644
--- a/slsDetectorSoftware/slsDetector/slsDetectorUsers.h
+++ b/slsDetectorSoftware/slsDetector/slsDetectorUsers.h
@@ -769,7 +769,24 @@ public:
 	 */
 	int setReceiverFramesPerFile(int f = -1, int detPos = -1);
 
+    /**
+     * Sets the value for the additional json header parameter if found, else append it
+     * @param key additional json header parameter
+     * @param value additional json header parameter value (cannot be empty)
+     * @param detPos -1 for all detectors in  list or specific detector position
+     * @returns the additional json header parameter value,
+     * empty if no parameter found in additional json header
+     */
+    std::string setAdditionalJsonParameter(const std::string& key, const std::string& value, int detPos = -1);
 
+    /**
+     * Returns the additional json header parameter value
+     * @param key additional json header parameter
+     * @param detPos -1 for all detectors in  list or specific detector position
+     * @returns the additional json header parameter value,
+     * empty if no parameter found in additional json header
+     */
+    std::string getAdditionalJsonParameter(const std::string& key, int detPos = -1);
 
 	/************************************************************************